Editing existing Text Box/Text Field
Adobe Acrobat DC Pro, downloaded a few weeks ago, previously AcrobatX.
I have thousands of PDF files on server, and on probably half of them I added a Text Box (at least I thought it was Text Box?) to use like a label.
It seems that now to do the same thing I need to create a Text Field?
Sometimes I need to go into the existing PDF's and make corrections or updates, but am struggling to find a way to do so.
Using Prepare Form I can edit the ones I have created since DC Pro, but cannot edit existing Text Box's.
In the screen shot there is an existing Text Box (red border) that I can't find a way to open for editing.
I have created a new Text Field that I can move over the existing Text Box, but I should be able to edit the existing Text Box???
Any help on how to do this is appreciated.

